WO2004071635B1 - Method, device, and system for controlling dissolved amount of gas - Google Patents

Method, device, and system for controlling dissolved amount of gas

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Publication number
WO2004071635B1
WO2004071635B1 PCT/JP2004/001499 JP2004001499W WO2004071635B1 WO 2004071635 B1 WO2004071635 B1 WO 2004071635B1 JP 2004001499 W JP2004001499 W JP 2004001499W WO 2004071635 B1 WO2004071635 B1 WO 2004071635B1
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WO
WIPO (PCT)
Prior art keywords
liquid
tank
gas
pressure
bubbles
Prior art date
Application number
PCT/JP2004/001499
Other languages
French (fr)
Japanese (ja)
Other versions
WO2004071635A1 (en
Inventor
Masayuki Fukagawa
Kesayoshi Hadano
Tetsuhiko Fujisato
Ryosaku Fujisato
Original Assignee
Masayuki Fukagawa
Kesayoshi Hadano
Tetsuhiko Fujisato
Ryosaku Fujisato
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Masayuki Fukagawa, Kesayoshi Hadano, Tetsuhiko Fujisato, Ryosaku Fujisato filed Critical Masayuki Fukagawa
Priority to GB0518608A priority Critical patent/GB2414689B/en
Priority to JP2005504987A priority patent/JP3929472B2/en
Priority to CA2514240A priority patent/CA2514240C/en
Priority to US10/545,626 priority patent/US7494534B2/en
Priority to CN2004800041576A priority patent/CN1819868B/en
Publication of WO2004071635A1 publication Critical patent/WO2004071635A1/en
Publication of WO2004071635B1 publication Critical patent/WO2004071635B1/en
Priority to HK07101735.1A priority patent/HK1094553A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0005—Degasification of liquids with one or more auxiliary substances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F21/00—Dissolving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0042—Degasification of liquids modifying the liquid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0063—Regulation, control including valves and floats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
    • B01F23/2326—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles adding the flowing main component by suction means, e.g. using an ejector
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
    • B01F35/2217—Volume of at least one component to be mixed
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/42—Liquid level
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/06—Pressure conditions
    • C02F2301/063—Underpressure, vacuum
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/12—Prevention of foaming
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/26—Foam

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Physical Water Treatments (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

A device for controlling dissolved amount of gas, comprising a pressure reducing part (1A) capable of bringing the inside of a tank (5) into a reduced pressure space by connecting a hole provided at the upper part of the closed tank (5) to a vacuum pump (1a) through a pipe (1b), an injection supply part (1B) injecting pressurized treated fluid (W) from the inside upper part of the tank (5) with a nozzle (3) capable of covering the large part of the reduced pressure space, a liquid foam generating part (1C) receiving the injected treated fluid (W) by a container (4) at the opening center part thereof and generating a large amount of air bubbles at the bottom part thereof and changing the air bubbles into liquid bubbles, a recovery pump part (1D) allowing the liquid bubbles overflowing from the upper end of the container (4) to fall to a lower part, temporarily storing the liquid bubbles as deaerated treated fluid, and recovering the treated fluid, and a tank water level sensor part (1E) transmitting information for maintaining the water level of the treated fluid (2W) stored in the tank (5) to a pump (7) and a valve (5b).

Claims

補正書の請求の範囲 :2004年 8月 1 5日 （1 5. 08. 04) 国際事務局受理：出願当初の請求の範囲 12， 5， 6及び 7は補正された；他の請求の範囲は変更なし。 （4頁） ] Claim for amendment: August 15, 2004 (1 5. 08. 04) Accepted by the International Bureau: Claim at the time of filing: 12, 5, 6 and 7 amended; other claims There is no change. (Page 4)]
1. (補正後） 閉じたタンク内の上部において上向きに開口部を持つ容器 （単 .複 数） を配置し、 前記容器の上部から前記容器の開口部中央に向かって周囲の空間 の気体を多量に巻き込むノズル（単 ·複数） によって被処理液を噴射することで、 前記容器内の底部に多量の気泡を発生させる多量気泡発生工程と、 前記気泡が前 記底部からその内周壁に沿いながら前記被処理液の流れと対向して上昇する流れ を形成する前記容器内で、 気泡同士が合体し拡大した気泡群と液体とが重力によ り上下に分離し、 前記容器内の上部域では液泡 （シャボン玉状の気泡集合体） に 変化させ前記容器から溢流されるので、 結果的に噴射された前記被処理液を液泡 の液薄膜 （以下、 液膜と言う） に生成できる液泡生成工程と、 前記タンク内の気 体を抜き減圧になった空間 （以下、 減圧空間と言う） とし、 前記液泡内を減圧状 態下で液膜に溶存している気体を液泡内へ放出させ、 その減圧度に応じた脱気液 を作ることができ、 また、 前記タンク内を加圧状態の空間 （以下、 加圧空間と言 う） にして前記液泡内の気体を圧縮状態にし、 その気体の圧力度に対応した濃度 の気体溶解液を作ることができる気体溶解量調整工程と、 を備えたことを特徴と する気体溶解量調整方法。 1. (After correction) Place the container (s) with an opening upward at the top in the closed tank, and let the gas in the surrounding space from the top of the container toward the center of the opening of the container A large bubble generation step of generating a large amount of bubbles in the bottom of the container by spraying the liquid to be treated by the nozzle (s) that involves a large amount, and the bubbles are along the inner peripheral wall from the bottom In the container forming the upward flow opposite to the flow of the liquid to be treated, the bubbles coalesced and the expanded bubble group and the liquid are separated vertically by gravity, and in the upper region in the container Since it is converted into liquid bubbles (bubble-shaped bubble aggregates) and overflowed from the container, a liquid bubble generating step that can form the liquid jetted as a result into the liquid thin film of liquid bubbles (hereinafter referred to as liquid film) And the air in the tank Let the inside of the liquid bubble be in a pressure-reduced state and release the gas dissolved in the liquid film into the liquid bubble, and let the degassing liquid according to the degree of pressure reduction. In addition, the inside of the tank is made into a pressurized space (hereinafter referred to as a pressurized space), the gas in the liquid bubble is compressed, and the gas dissolves at a concentration corresponding to the pressure degree of the gas. A gas dissolving amount adjusting step capable of producing a liquid; and a gas dissolving amount adjusting method comprising:
2. (補正後） 閉じたタンク （5) の上部に設けられた孔と真空ポンプ （l a) を パイプ （l b) 等で接続させることによって、 前記タンク （5) 内を減圧空間に することができる減圧部 （1A) と、 加圧ポンプ （2) により加圧された被処理液 (W)を前記タンク （5)内上部から減圧空間の気体を多量に巻き込むノズル（3) によって噴射する噴射供給部 （1B) と、 噴射された前記被処理液 （W) をその上 部開口中央部で受けて減圧空間の気体を巻き込み底部で多量の気泡を発生させた 後、 気泡群がその内周壁に沿いながら前記被処理液の流れと対向して上昇する流 れを形成する容器 （4) を有し、 この容器 （4) の周壁に沿いながら前記気泡群 を液体から分離して、 上部域で液泡に変化させる液泡生成部 （1C) と、 前記容器 (4) の上端部から溢流した液泡を下方部に落流して脱気された処理液として一 時的に貯留させ、 この処理液を回収する回収ポンプ部 （1D) と、 前記タンク （5) 内に貯留されている前記処理液 （2W) の水位を維持する為の情報をポンプ （7)  2. (After correction) The inside of the tank (5) can be made into a depressurized space by connecting the hole provided at the top of the closed tank (5) and the vacuum pump (la) with a pipe (lb) or the like And a nozzle (3) for injecting the liquid to be treated (W) pressurized by the pressure reducing part (1A) and the pressure pump (2) from the upper part in the tank (5) After the supply section (1B) and the jetted liquid to be treated (W) are received at the upper opening center and the gas in the decompression space is taken in to generate a large number of bubbles at the bottom, the bubbles are the inner peripheral wall And a container (4) for forming a flow rising upward against the flow of the liquid to be treated along the wall, and separating the bubbles from the liquid along the peripheral wall of the container (4) A liquid foam generating unit (1C) that changes the liquid foam at the liquid foam, and the liquid foam overflowed from the upper end of the container (4) A recovery pump (1D) for temporarily storing the treatment liquid which has fallen into the lower part and is deaerated, and the treatment liquid (2W) stored in the tank (5). Information to maintain the water level of)) (7)
補正された用弒 (条約第 19条) 及び弁 （5 b) 等に伝えるタンク内水位センサー部 （1E) と、 を有して構成され ていることを特徴とする気体溶解量調整装置。 Amended use (Article 19 of the Convention) And a tank level sensor unit (1E) for communicating to a valve (5 b) or the like, and characterized in that it comprises:
3. 開口されたパイプ （12) の下端を液槽 （1 2A) 内の被処理液 （W) の中に 浸け、 前記パイプ （12) の上端部に前処理タンク （13) を接続し、 前記液槽 (12A) の液面からの高さ 10.33mを越える位置に気体を抜く為の孔を設けて、 真空ポンプ （11) と接続することで前記パイプ （12) 内に減圧空間を作り、 前記被処理液 （W) を前記液槽 （12A) 内の液面より上方 10m程度まで吸い上 げ溶存気体を発泡させることができる減圧上昇部 （1 1, 11 a、 l i b, 12, 12 A) と、 開口されたパイプ （18) を回収用液槽 （18 A) の処理液 （2W) 中に浸け、 前記液槽 （12A) 内の液面より上方約 10.6〜11.2mの位置に液泡を 生成する容器 （1 6) が入れられたタンク （17) が接続され、 前記減圧上昇部 と同様に前記タンク （17) 上部に孔を設け真空ポンプ （11) と接続され前記 タンク （17) 内が減圧空間になっている状況で、 前記減圧上昇部に吸い上げら れている被処理液をポンプ （14) により加圧液とし、 前記容器 （16) 内へ噴 射して液泡を生成させる上部液泡生成部 （14, 15, 16, 17) と、 前記容 器 （16) 内で生成された液泡が溢流する位置が液槽の液面から 10.33m以上高 い位置なので、 水頭差により処理液を自重でパイプ （18) 内を下降させて回収 用液槽 （18 A) から回収できる自重回収部 （18, 18 A) と、 を有して構成 されていることを特徴とする気体溶解量調整装置。  3. Immerse the lower end of the opened pipe (12) in the liquid (W) in the liquid tank (12A), and connect the pretreatment tank (13) to the upper end of the pipe (12), A hole for extracting gas is provided at a position exceeding 10.33 m in height from the liquid surface of the liquid tank (12A), and a pressure reduction space is created in the pipe (12) by connecting with a vacuum pump (11). The reduced pressure rising portion (11, 11 a, lib, 12, 12) capable of sucking the liquid to be treated (W) up to about 10 m above the liquid surface in the liquid tank (12A) and foaming the dissolved gas. A) Dip the opened pipe (18) into the treatment liquid (2 W) of the recovery liquid tank (18 A), and place it at a position approximately 10.6 to 11.2 m above the liquid level in the liquid tank (12 A) A tank (17) containing a container (1 6) for generating liquid bubbles is connected, and a hole is provided at the upper portion of the tank (17) as in the pressure reducing and rising section and connected to a vacuum pump (11). 17) In the condition where the inside is a depressurized space, the liquid to be treated sucked up by the depressurization rising portion is made into a pressurized liquid by a pump (14), and injected into the container (16) to expel the liquid bubbles Since the upper liquid bubble generation unit (14, 15, 16, 17) to be generated and the position where the liquid bubble generated in the container (16) overflows is a position higher than 10.33 m from the liquid surface of the liquid tank, the water head The apparatus is characterized in that it comprises: a self-weight recovery section (18, 18 A) capable of lowering the processing solution by its own weight in the pipe (18) and recovering it from the recovery liquid tank (18 A) according to the difference. Gas dissolution amount adjustment device.
4. 閉じたタンク （21) 内上部に配置され前記タンク内の圧縮状態の気体を多, く卷き込みながら給湯器及び水道等から供給される加圧液体を噴射する噴射供給 部 （22) と、 前記タンク （21) 内上部に配置され上向きに開口をもつ容器の 内断面が上部で若干縮径して、最上部分が広角に開口している液泡生成容器部（ 2 3) と、 前記タンク （21) の下流側に取り付けられ溶解液の排出量を調整する か、 または定流量排出することで、 前記タンク （21) 内の気体の圧力を調整で き.、 または定圧にできる排出量調整部 （25, 26， 27) と、 を有して構成さ れていることを特徴とする気体溶解量調整装置。 4. A jet supply unit (22) which is disposed at the upper inside of the closed tank (21) and jets pressurized liquid supplied from a water heater, tap water or the like while a large amount of compressed gas in the tank is looked into. And a liquid bubble generating container portion (23) in which the inner cross section of the container disposed at the upper portion in the tank (21) and having an opening upward is slightly reduced in diameter at the upper portion and the uppermost portion is wide angled; The pressure of the gas in the tank (21) can be adjusted by adjusting the discharge amount of the solution installed at the downstream side of the tank (21), or by discharging at a constant flow rate, or the discharge amount that can be made constant pressure. An apparatus for adjusting a dissolved amount of gas, comprising: an adjusting unit (25, 26, 27);
5. (捕正後） 請求の範囲第 4項に記載の発明において、 前記タンク （21) 内上 部の圧縮された気体によって形成されている空間が溶解することにより小さくな  5. (After collection) In the invention according to claim 4, the space formed by the compressed gas in the upper part in the tank (21) is reduced by melting.
補正された用弒 (条約第 19条） 36 Amended use (Article 19 of the Convention) 36
つた時に、 手動で弁を開閉することによって新たな気体を供給する目的で、 前記 噴射供給部 （22) からの噴射を制御できる供給弁 （22 a) と、 噴射を止めた 後にタンク内に残っている液体を排出できる残液排出弁 （28) と、 前記タンク (2 1) 上部から気体を供給することで残液の排出を促進すると同時に新たな気 体を前記タンク内に供給できる気体供給弁 （29) と、 を有して構成されている ことを特徴とする気体溶解量調整装置。 In order to supply new gas by opening and closing the valve manually, the supply valve (22 a) which can control the injection from the injection supply section (22), and after it stops the injection remains in the tank. The residual liquid discharge valve (28) capable of discharging the liquid and the gas supplied from the upper part of the tank (21) accelerate the discharge of the residual liquid and at the same time supply a new gas into the tank A gas dissolved amount adjusting device comprising: a valve (29);
6. (捕正後)加圧ポンプ（3 2) 等の吸引管 （32 a) から処理水 （W) を吸引し、 吸引管 （3 2 a) に設けられた細孔から負圧を利用して気体を自吸し、 自吸量を 調整して気液混合の圧力液を作る圧力気液供給部 （3 1 A) と、 前記圧力液を供 給管 （3 3 a) を介して、 直噴ではなく若干広がって噴射するノズル （3 3) で 周囲の気体を多量に巻き込むノズル部 （3 1 B) と、 耐圧タンク （3 5) の上部 中央から前記ノズル （3 3) から前記耐圧タンク （3 5) 内の容器 （34) の中 に嘖射することで、 前記容器 （34) 底部の液中に多量の気泡を発生させること ができ、 発生した気泡の浮力を利用して気泡を上昇させ、 前記容器 （34) の上 部の縮径域で効率良く液泡 （以下、 液中にある泡を気泡と言い、 シャボン玉状の 泡の集合体を液泡と言う。） に変化させ、溢れて排出する液泡生成容器部（3 1 C) と、 前記ノズル部 （3 1 B) 及び前記液泡生成容器部 （31 C) を耐圧タンク （3 5) 内の上部に内蔵し、 前記耐圧タンク （3 5) 下流側に排出弁 （3 5 b) を取 り付け、 前記耐圧タンク （3 5) 内の圧力及び排出量を調整できる溶解濃度調整 タンク部 （3 1 D) と、 前記耐圧タンク （3 5) 内に設置されたフロート等のセ ンサ一で、 前記耐圧タンク （3 5) 内の気体溶解水の水位を感知するタンク内水 位センサー部 （3 1 E) と、 加圧されている気体溶解水に浮遊物が多く混入して いる場合に、 前記耐圧タンク （35) 内を任意に減圧し、 前記耐圧タンク （35) 内に微細気泡を発生させて浮遊物を気泡との吸着により浮上分離させ、 浮遊物を 排出できる浮遊物排出口 （34A) と、 を備えていることを特徴とする気体溶解  6. (After collection) Aspirate treated water (W) from the suction pipe (32 a) of the pressure pump (32) etc. and use negative pressure from the pores provided in the suction pipe (32 a) Pressure and liquid supply unit (31 A), and the pressure liquid is supplied through the supply pipe (3 3 a). A nozzle (3 1 B) which a large amount of surrounding gas is caught by a nozzle (3 3) which spreads slightly and does not direct injection, and the above-mentioned nozzle (3 3) from the upper center of the pressure tank (35) By injecting into the container (34) in the pressure-resistant tank (35), a large amount of air bubbles can be generated in the liquid at the bottom of the container (34), and the buoyancy of the generated air bubbles is utilized. The bubbles rise, and the bubbles in the upper part of the container (34) are efficiently changed to liquid bubbles (hereinafter, bubbles in the liquid are referred to as bubbles, and an aggregate of bubble bubbles is referred to as liquid bubbles). Let A liquid bubble generating container (31 C) that overflows and discharges, the nozzle (31 B) and the liquid bubble generating container (31 C) are built in the upper part in the pressure tank (35), and the pressure tank (3 5) Install a discharge valve (35 b) on the downstream side, and adjust the concentration and discharge amount in the pressure tank (35), and adjust the dissolved concentration adjustment tank part (31 D), and the pressure tank (3 5) A sensor such as a float installed inside the tank, and a water level sensor section (3 1 E) in the tank that senses the water level of dissolved gas in the pressure tank (3 5) When a large amount of suspended matter is mixed in the dissolved gas water, the pressure in the pressure tank (35) is optionally reduced in pressure, and fine bubbles are generated in the pressure tank (35) to make the suspended matter into bubbles. And a float discharge port (34A) capable of floating and separating floats by adsorption and discharging the float, and
7. (補正後） 海やダム等の水深のある場所 （水深 30m以上が望ましい。） におい て、請求の範囲第 6項記載の気体溶解'量調整装置の前記供給管（3 3 a)部分に、 ストレーナ一 （3 3 d) 及び静圧水弁 （3 3 c) を取り付け、 前記耐圧タンク （3 補正された用弒 (条約第 19条） 37 7. (After correction) The supply pipe (3 3 a) portion of the apparatus for adjusting the amount of dissolved gas according to claim 6 in a place with a depth of water such as sea or dam (water depth is preferably 30 m or more). Attach the strainer one (3 3 d) and the static pressure water valve (3 3 c) to the pressure-resistant tank (3 corrected usage plate (Article 19 of the Convention) 37
5) 内を減圧にすることで、 水深の静圧水を前記ノズル （3 3) から噴射させる ことができ、 また前記ノズル部 （3 1 B) に逆洗弁 （3 3 b) が取り付けて有り 逆洗もできる静圧水供給部 （40A) と、 前記耐圧タンク （35) 上部に孔を設 けて、 その孔に前記耐圧タンク （3 5) 内の気体を排出及び圧入する為の気体入 出弁 （3 5 B) を取り付け、 耐圧気体ホース等により、 水面上に置かれたコンプ レッサー （3 7) の気体吸引側及び気体圧送側に、 それぞれ配置された気体貯留 タンク （ 3 8, 3 9) に接続し、 弁 （3 8 a, 3 9 a) を付けて作動させること で、 水深のある場所に置かれた前記耐圧タンク （35) 内の気体圧力を調整でき るタンク内圧調整部 （40 B) と、 前記耐圧タンク （3 5) 内の気体溶解水の満 水時及び減水時の水位を感知するセンサー （3 6 A, 3 6 B) や、 前記気体貯留 タンク内等の圧力を感知するセンサー等により、 全ての弁を電磁弁で作動させる コントロール部 （40 C) と、 を備えていることを特徴とする気体溶解量調整シ ステム。 5) By depressurizing the inside, static pressure water in the water depth can be jetted from the nozzle (3 3), and a backwash valve (3 3 b) is attached to the nozzle portion (3 1 B). Yes Static pressure water supply unit (40A) that can be backwashed, and a hole at the top of the pressure tank (35), and a gas for discharging and pressing the gas in the pressure tank (35) into the hole. A gas storage tank (38, 8) is installed on the gas suction side and the gas pumping side of the compressor (37) installed on the water surface with the inlet / outlet valve (35 B) attached and a pressure resistant gas hose etc. 3) Connect the valve to the 9), and operate the valve (3 8 a, 3 9 a) to adjust the gas pressure in the pressure tank (35) placed in the water depth area. Sensor (3 6 A, 3) for detecting the water level when the dissolved gas water in the pressure part (40 B) and the pressure tank (3 5) is full or reduced 6 B), and a control unit (40 C) for operating all the valves with a solenoid valve by a sensor or the like that detects the pressure in the gas storage tank etc. System.
細正された用紙 (条約篛 19 Refined form (Contract 篛 19

38 条約 1 9条に基づく説明書  38 Convention 1 Instructions under Article 9

請求の範囲第 1項は、 主に、 液泡生成工程の記載に含まれる容器の内容に関し て、国際調査報告に列記された文献に開示される技術内容との相違を明確にした。 引用された文献 1 . では、 単に脱気処理槽あるいはトレイに被処理液体を高速 で突入させて、液液接触界面で溶存気体を気泡化して浮上破泡させるものである。 一方、 本発明の液泡生成工程では、 減圧空間の多量の気体を被処理液に卷き込 んで気泡を容器の底部で生成させ、 その気泡群が底部からその内周壁を被処理液 と対向しながら上昇することで、 気泡同士が合体して拡大した気泡群と液体とが 重力の作用で分離されるため、 容器の上部域では気泡同士が接触して集合体とな り液泡が形成され、 非常に高いボイ ド率を実現することができる。 そして、 液泡 を構成する気泡が容器から溢流する時に破裂を生じるので、 文献 1 . の高速噴射 による破泡よりも、 被処理液中に溶存する気体の濃度をより効果的に減少、 ある いは增加させることができる。 請求の範囲第 2項も、 主に、液泡生成部に含まれる容器（4 ) の内容に関して、 国際調査報告に列記された文献に開示される技術内容との相違を明確にした。 文 献 1 . との関係も第 1項の記載と同様である。 請求の範囲第 5項は、 国際出願の不備として指摘された請求項という誤記を訂 正した。 請求の範囲第 6項は、 構成要素の符号の誤記を訂正した。 請求の範囲第 7項は、 国際出願の不備として指摘された請求項という誤記を訂 正した。 Claim 1 made clear the difference with the technical contents disclosed in the documents listed in the international search report, mainly regarding the contents of the containers included in the description of the liquid bubble generation process. In the cited reference 1, the liquid to be treated is simply rushed into the degassing treatment tank or tray at a high speed, and the dissolved gas is aerated at the liquid-liquid contact interface to float up and collapse. On the other hand, in the liquid bubble generation step of the present invention, a large amount of gas in the depressurized space is seeped into the liquid to be treated to generate bubbles at the bottom of the container, and the bubbles form the inner circumferential wall from the bottom to face the liquid to be treated. While rising, the bubbles are united and the expanded bubbles and the liquid are separated by the action of gravity, so that the bubbles contact with each other in the upper region of the container to form an aggregate and a liquid bubble, A very high void rate can be achieved. And, since the bubbles that make up the liquid bubble cause a burst when overflowing from the container, the concentration of the gas dissolved in the liquid to be treated is reduced more effectively than the bursting by the high-speed injection of reference 1. Can be added. Claim 2 also clarified the difference from the technical contents disclosed in the documents listed in the international search report, mainly regarding the contents of the container (4) contained in the liquid bubble generation unit. The relationship with document 1 is also the same as described in paragraph 1. Claim 5 corrected the error of the claim pointed out as a defect of the international application. Claim 6 corrected the mistake of the sign of the component. Claim 7 corrected the error of the claim pointed out as a defect of the international application.

PCT/JP2004/001499 2003-02-13 2004-02-12 Method, device, and system for controlling dissolved amount of gas WO2004071635A1 (en)

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CA2514240A CA2514240C (en) 2003-02-13 2004-02-12 Method, device, and system for controlling dissolved amount of gas
US10/545,626 US7494534B2 (en) 2003-02-13 2004-02-12 Method, device, and system for controlling dissolved amount of gas
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